提出有线网络公司建立呼叫中心的必要性，介绍呼叫中心的关键技术。

This paper shows the necessity for CATV network enterprises to construct call center and introduction about key technology of call center.

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阐述铁路构建呼叫中心的重要作用，介绍呼叫中心的概念。

This paper expounded the important function for the construction of Railway Call Center, introduced the concept of Call Centers.

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